A variable diameter cleaning head and cleaning device

Abstract

The present invention discloses a variable diameter cleaning head and a cleaning device, wherein the variable diameter cleaning head comprises a main rod, a telescopic frame, a frame adjustment device and a frame locking device, the telescopic frame is arranged around the side wall of the main rod, the frame adjustment device is slidably sleeved on the main rod and is hinged with the telescopic frame, the frame adjustment device reciprocates along the axial direction of the main rod to drive the telescopic frame to extend or contract, and the frame locking device is arranged on the main rod to lock and position the frame adjustment device. Thus, a layer of flannel is fixedly arranged on the periphery of the telescopic frame of the present invention, and the inner cavity of a cylindrical or other structured device of different diameters is cleaned by controlling the extension and relaxation of the telescopic frame, thereby saving the cleaning cost of the device and improving the cleaning efficiency of the device.

Description

Technical Field

[0001] The invention relates to the technical field of ship equipment cleaning, and in particular to a variable diameter cleaning head and a cleaning device. Background Art

[0002] The inner cavity of most equipment in ship systems needs to be cleaned regularly to remove impurities, oil stains, etc.

[0003] At present, only simple maintenance items such as cleaning the oil stains on the inner wall of the container are usually carried out, and the cost is also quite high. In addition, only a small number of precision equipment are regularly maintained by the equipment unit, and the cleaning of the inner cavity of most equipment in the ship system needs to be cleaned and maintained by the user on a daily basis.

[0004] However, existing cleaning tools are too old-fashioned, single and bulky, and there is no one tool specifically for cleaning cylindrical cavities. Therefore, how to make a device for effectively cleaning cylindrical cavities has become an urgent problem to be solved. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a variable diameter cleaning head and a cleaning device to effectively clean a cylindrical inner cavity.

[0006] In order to achieve the above-mentioned object and other related objects, the present invention provides a variable diameter cleaning head, comprising:

[0007] Main pole;

[0008] A retractable frame is arranged around the side wall of the main rod;

[0009] The frame adjustment device is slidably sleeved on the main rod and is hinged with the telescopic frame. The frame adjustment device reciprocates along the axial direction of the main rod to drive the telescopic frame to extend or contract.

[0010] The frame locking device is arranged on the main rod to lock and position the frame adjusting device.

[0011] Optionally, the telescopic frame includes a plurality of main frames spaced around the main rod, and a single main frame includes:

[0012] A first support frame, one end of which is hinged to the skeleton adjustment device;

[0013] A second support frame, one end of which is hinged to the main rod, and the other end of the first support frame is hinged to the second support frame;

[0014] A third support frame, one end of which is hinged to the main rod;

[0015] The fourth support frame is arranged parallel to the extension direction of the main rod, and the other end of the second support rod and the other end of the third support rod are both hinged to the fourth support frame, and the second support frame and the third support frame are arranged in parallel.

[0016] Optionally, the skeleton adjustment device is an adjustment ring sleeved on the main rod, and a plurality of first support frames are arranged at intervals along the circumferential direction of the outer wall of the adjustment ring and are hinged to the outer wall of the adjustment ring.

[0017] Optionally, the adjusting ring is formed into a conical structure whose diameter gradually decreases in a direction away from the telescopic frame, and the surface of the conical structure is provided with an external thread.

[0018] Optionally, the skeleton locking device is a locking ring, and an internal thread is provided on the inner wall of the locking ring, and the internal thread matches the external thread on the adjusting ring.

[0019] Optionally, the variable diameter cleaning head further includes:

[0020] The scale lines are arranged along the extension direction of the main rod and are used to mark the position of the skeleton adjustment device.

[0021] Optionally, the variable diameter cleaning head further includes:

[0022] A rotating shaft is fixedly arranged on the end surface of the main rod;

[0023] The main rod locking device surrounds and covers the rotating shaft and is fixedly connected to the main rod.

[0024] Optionally, the main rod locking device comprises:

[0025] A connecting cover, comprising a bottom wall covering the end surface of the main rod and a side wall extending along the edge of the bottom wall and arranged around the rotating shaft, the side wall of the connecting cover being threadedly connected to the side wall of the main rod;

[0026] A sleeve ring is sleeved on the rotating shaft and is arranged in a space surrounded by the connecting cover and the main rod;

[0027] Extension parts, a plurality of extension parts extending from the side wall of the sleeve ring along the radial direction of the main rod, and a limited position bayonet is formed at the end of each extension part;

[0028] A spring baffle is arranged on the surface of the bottom wall of the connecting cover facing the main rod, and the spring baffle corresponds to the extension part one by one;

[0029] The spring sheet comprises a first part and a second part, wherein the first part and the second part are integrally connected to form a V-shaped structure; the spring sheet is arranged between the extension part and the spring baffle, and the first part of the spring sheet is in contact with the extension part, and the second part of the spring sheet is in contact with the spring baffle;

[0030] A connecting rod extending from the sleeve ring along the radial direction of the main rod and penetrating the side wall of the connecting cover;

[0031] An unlocking buckle is arranged on the outer side wall of the connecting cover and is fixedly connected to the end of the connecting rod extending to the outer side wall of the connecting cover;

[0032] When the unlocking buckle is pushed along the circumferential direction of the main rod, the unlocking buckle drives the connecting rod and drives the extending part to move along the circumferential direction of the main rod.

[0033] This embodiment also provides a cleaning device, including:

[0034] A variable diameter cleaning head, which is a variable diameter cleaning head in any of the above schemes;

[0035] A transmission rod is provided with a motor inside the transmission rod, and a power output end of the motor is drivingly connected to the variable diameter cleaning head.

[0036] Optionally, the transmission rod further includes:

[0037] The transmission mechanism is sleeved on the transmission rod through a bearing and is arranged on the connection end of the transmission rod for connecting the variable diameter cleaning head;

[0038] The card slot is arranged on the transmission mechanism, and is arranged one-to-one with the extension part of the main rod locking device in the variable diameter cleaning head, and is engaged with the limit card slot on the extension part through the engagement slot on the connecting cover.

[0039] Optionally, the cleaning device further comprises:

[0040] The control rod is fixedly connected with the transmission rod, and a battery is arranged inside the control rod, and the battery is electrically connected with the motor in the transmission rod.

[0041] Compared with the prior art, the variable diameter cleaning head and cleaning device of the present invention have at least the following beneficial effects:

[0042] The variable diameter cleaning head of the present invention comprises a main rod, a telescopic frame, a frame adjustment device and a frame locking device, wherein the telescopic frame is arranged around the side wall of the main rod, the frame adjustment device is slidably sleeved on the main rod and hinged with the telescopic frame, the frame adjustment device reciprocates along the axial direction of the main rod to drive the telescopic frame to extend or contract, and the frame locking device is arranged on the main rod to lock and position the frame adjustment device. Thus, a layer of flannel is fixedly arranged on the periphery of the telescopic frame of the present invention, and the inner cavity of a cylindrical or other structured device of different diameters can be cleaned by controlling the extension and relaxation of the telescopic frame, thereby saving the cleaning cost of the equipment and improving the cleaning efficiency of the equipment.

[0043] The cleaning device described in the present invention also includes a transmission rod and a control rod, wherein a motor is arranged in the transmission rod, and the cleaning head is connected to the motor in the transmission rod to realize electric cleaning; a battery is arranged in the control rod for providing power to the motor in the transmission rod.

[0044] In summary, the cleaning head and cleaning equipment described in the present invention can effectively clean the inner cavity of a cylindrical device, improve the cleaning efficiency, and save the equipment cleaning cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic structural diagram of a variable diameter cleaning head according to an embodiment of the present invention;

[0046] Figure 2a It is a schematic diagram of the structure of a single main frame of the variable diameter cleaning head according to an embodiment of the present invention when it is contracted;

[0047] Figure 2b It is a schematic structural diagram of a single main frame of a variable diameter cleaning head according to an embodiment of the present invention when it is extended;

[0048] Figure 2c It is a schematic structural diagram of a single main frame of a variable diameter cleaning head according to an embodiment of the present invention when it is extended;

[0049] Figure 3a It is a schematic diagram of the top view of the variable diameter cleaning head according to an embodiment of the present invention;

[0050] Figure 3b for Figure 1 Middle AA section view;

[0051] Figure 3c for Figure 3b A local enlarged view of the area in the middle A;

[0052] Figure 4 It is a bottom view structural schematic diagram of the variable diameter cleaning head according to an embodiment of the present invention;

[0053] Figure 5 A schematic structural diagram of a cleaning device according to an embodiment of the present invention;

[0054] Figure 6 It is a structural schematic diagram of a transmission rod according to an embodiment of the present invention;

[0055] Figure 7 A front view of a transmission rod according to an embodiment of the present invention;

[0056] Figure 8 is a cross-sectional view of a transmission rod according to an embodiment of the present invention;

[0057] Fig. 9 A schematic diagram of the structure of a control rod according to an embodiment of the present invention;

[0058] Fig.10 It is a cross-sectional view of a control rod according to an embodiment of the present invention.

[0059] List of reference numerals:

[0060] 1 Variable diameter cleaning head 2 Transmission rod

[0061] 11 retractable frame 21 transmission mechanism

[0062] 110 Main frame 21-1 Transmission plate

[0063] 111 first support frame 21-2 reinforcement plate

[0064] 112 Second support frame 21-3 Ball bearing

[0065] 113 third support frame 22 motor

[0066] 114 Fourth support frame 22-1 Motor base

[0067] 12 Cleaning head main rod 22-2 Motor fixing bolt

[0068] 121 scale line 22-3 motor output end

[0069] 13 skeleton adjustment device 24 transmission rod main rod

[0070] 131 Conical structure 25 Transmission rod conversion joint

[0071] 14 Frame locking device 26 Connection line

[0072] 15 Rotating axis 27 Slot

[0073] 16 Main rod locking device 28 Threading hole

[0074] 161 Socket Ring 3 Control Rod

[0075] 162 extension part 31 control rod main rod

[0076] 163 limit bayonet 32 ​​control rod conversion joint

[0077] 164 Spring 33 Knob

[0078] 164-1 Part 1 34 Battery holder

[0079] 164-2 Section 2 35 Batteries

[0080] 165 Connecting cover 36 Non-slip handle

[0081] 166 Spring baffle 37 Back cover

[0082] 167 snap-in slot 38 wiring port

[0083] 168 unlock button

[0084] 169 Connecting rod DETAILED DESCRIPTION

[0085] The following specific embodiments illustrate the embodiments of the present invention, and those familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0086] It should be noted that the diagrams provided in the embodiments of the present invention are only used to illustrate the basic concept of the present invention in a schematic manner. Although the diagrams only show the components related to the present invention rather than being drawn according to the number, shape and size of the components in actual implementation, the form, quantity and proportion of each component can be changed at will during actual implementation, and the layout of the components may also be more complex. The structures, proportions, sizes, etc. illustrated in the drawings of the specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this application, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by the present invention.

[0087] Example 1

[0088] This embodiment discloses a variable diameter cleaning head, comprising a cleaning head main rod, a telescopic frame, a frame adjustment device and a frame locking device. The telescopic frame is arranged around the side wall of the main rod, the frame adjustment device is slidably sleeved on the main rod and hinged with the telescopic frame, and the frame adjustment device reciprocates along the axial direction of the main rod to drive the telescopic frame to extend or contract. The frame locking device is arranged on the main rod to lock and position the frame adjustment device.

[0089] Specifically, refer to Figure 1, the cleaning head main rod 12 is cylindrical, and the telescopic skeleton 11 is arranged around the outer wall of the cleaning head main rod 12. The telescopic skeleton 11 includes a plurality of main skeletons 110 arranged at intervals around the cleaning head main rod 12, wherein a single main skeleton 110 includes a first support frame 111, a second support frame 112, a third support frame 113 and a fourth support frame 114, and one end of the first support frame 111 is hinged to the skeleton adjustment device 13. One end of the second support frame 112 is hinged to the cleaning head main rod 12, the other end of the first support frame 111 is hinged to the second support frame 112, one end of the third support frame 113 is hinged to the cleaning head main rod 12, the fourth support frame 114 is arranged parallel to the extension direction of the cleaning head main rod 12, and the other end of the second support rod and the other end of the third support rod are both hinged to the fourth support frame 114, and the second support frame 112 and the third support frame 113 are arranged in parallel.

[0090] Reference Figure 1 , the skeleton adjustment device 13 is slidably sleeved on the main rod 12 of the cleaning head, and is hinged with the first support frame 111 of the telescopic skeleton 11. The skeleton adjustment device 13 is mainly used to adjust the opening diameter of the main skeleton 110 to open different diameter modes according to the diameter of the cleaning container. When the opening width of the cleaning container is small and the internal diameter is large, the skeleton adjustment device 13 is used to adjust the diameter contraction of the main skeleton 110 so as to extend into the opening. When the inner wall is to be cleaned, the skeleton adjustment device is controlled to relax the main skeleton 110 to clean the inner wall of the cleaning container. In this embodiment, the skeleton adjustment device 13 is an adjustment ring sleeved on the main rod 12 of the cleaning head, and a plurality of first support frames 111 are arranged circumferentially at intervals along the outer side wall of the adjustment ring and are hinged with the outer wall of the adjustment ring. The adjustment ring becomes a tapered structure 131 whose diameter gradually decreases in the direction away from the telescopic skeleton 11, and the surface of the tapered structure 131 is provided with an external thread. When the skeleton adjustment device 13 is moved, each support frame rotates around the connection point, thereby controlling the size of the diameter change of the main skeleton 110. After the size of the main frame 110 is determined, a layer of flannel (not shown in the figure) is wrapped around the outer periphery of the main frame 110 to clean impurities in the container.

[0091] Reference Figure 1, the skeleton locking device 14 is arranged on the cleaning head main rod 12, and is used to lock and position the skeleton adjustment device 13. The skeleton locking device 14 is a locking ring sleeved on the cleaning head main rod 12, and an internal thread is arranged on the inner wall of the locking ring, and the internal thread matches the external thread on the adjustment ring. Optionally, the skeleton adjustment device 13 is also provided with scale lines 121 along the sliding area on the cleaning head main rod 12. The scale lines 121 are arranged along the extension direction of the cleaning head main rod 12, and are used to mark the position of the skeleton adjustment device 13, thereby controlling the extension or contraction degree of the retractable skeleton 11. Specifically, the scale lines 121 determine the size interval of the retraction and extension of the main skeleton 110. When the skeleton adjustment device 13 moves to the bottom of the scale lines 121, refer to Figure 2a , the main frame 110 is in a retracted state, and all the support frames are completely attached to the cleaning head main rod 12. Figure 2c When the frame adjustment device 13 moves to the highest point of the scale line 121, the main frame 110 is in a released state, and all the support frames are fully opened. At this time, the main frame 110 also reaches the maximum opening degree. Figure 2b When the frame adjustment device 13 is moved to the required position, the frame locking device 14 is tightened with the frame adjustment device 13 to fix the entire main frame 110, thereby ensuring that the main frame 110 will not shrink and deform due to the external force during operation. In this embodiment, the adjustment ring and the sleeve ring 161 are connected by threads to achieve the locking of the state of the main frame 110.

[0092] Optionally, refer to Figure 3a-3b The variable diameter cleaning head also includes a rotating shaft 15. The rotating shaft 15 is fixedly arranged on the end surface of the cleaning head main rod 12, and is used to be connected with a power device to control the rotation of the variable diameter cleaning head.

[0093] Optionally, refer to Figure 3a to 3c The variable diameter cleaning head further comprises a main rod locking device 16, which surrounds and covers the rotating shaft 15 and is fixedly connected to the cleaning head main rod 12, and is used to connect and lock the transmission mechanism 21 of the transmission rod 2. Specifically, referring to Figure 3a The main rod locking device 16 includes a connecting cover 165, a sleeve ring 161, an extension portion 162, a spring baffle 166, a spring sheet 164, a connecting rod 169 and an unlocking buckle 168, wherein the connecting cover 165 includes a bottom wall covering the end surface of the cleaning head main rod 12 and a side wall extending along the edge of the bottom wall and arranged around the rotating shaft 15, and the side wall of the connecting cover 165 is threadedly connected to the side wall of the cleaning head main rod 12; the sleeve ring 161 is sleeved on the rotating shaft 15, and is arranged in the space enclosed by the connecting cover 165 and the cleaning head main rod 12. The extension portion 162 extends from the side wall of the sleeve ring 161 along the radial direction of the cleaning head main rod 12 to form a plurality of extension portions 162, and a limited position bayonet 163 is formed at the end of each extension portion 162. Referring to Figure 3a The spring baffle 166 is disposed on the surface of the bottom wall of the connection cover 165 facing the cleaning head main rod 12, and the spring baffle 166 corresponds to the extension portion 162 one by one. Figure 3c , the spring sheet 164 includes a first part 164-1 and a second part 164-2, and the first part 164-1 and the second part 164-2 are integrally connected to form a V-shaped structure. The spring sheet 164 is arranged between the extension portion 162 and the spring baffle 166, and the first part 164-1 of the spring sheet 164 is in contact with the extension portion 162, and the second part 164-2 of the spring sheet 164 is in contact with the spring baffle 166. The connecting rod 169 extends from the sleeve ring 161 along the radial direction of the cleaning head main rod 12 and passes through the side wall of the connecting cover 165. The unlocking buckle 168 is arranged on the outer side wall of the connecting cover 165 and is fixedly connected to the end of the connecting rod 169 extending to the outer side wall of the connecting cover 165. When the unlocking buckle 168 is pushed along the circumference of the cleaning head main rod 12, the unlocking buckle 168 drives the connecting rod 169 and drives the extension portion 162 to move along the circumference of the cleaning head main rod 12. Optionally, refer to Figure 3a and 4 A snap-fitting groove 167 is also provided on the bottom wall of the connecting cover 165 , and the snap-fitting groove 167 corresponds to the position of the limiting snap-fitting hole 163 . The snap-fitting groove on the transmission rod 2 is inserted into the snap-fitting groove 167 and is engaged with the limiting snap-fitting hole 163 .

[0094] Example 2

[0095] This embodiment also provides a cleaning device, referring to Figure 5 The cleaning device comprises the variable diameter cleaning head 1 and the transmission rod 2 described in the embodiment 1. The transmission rod 2 is provided with a motor 22 inside. The output end of the motor 22 is drivingly connected to the variable diameter cleaning head. Figure 6 , 7 Or 8, the transmission rod 2 also includes a transmission mechanism 21 and a slot 27, wherein the transmission mechanism 21 is fixedly connected to the transmission rod 2 through a bearing sleeved on the transmission rod 2. And the transmission mechanism 21 is arranged at the connection end of the transmission rod 2 for connecting the variable diameter cleaning head 1. The slot 27 is arranged on the transmission mechanism 21, and the slot 27 is arranged one-to-one with the extension part 162 of the main rod locking device 16 in the variable diameter cleaning head 1, and is engaged with the limit opening 163 on the extension part 162 through the engagement groove 167 on the connection cover.

[0096] Specifically, refer to Figure 6, the transmission rod 2 is fixedly provided with a rolling bearing 21-3 on the connection end with the variable diameter cleaning head 1, and the transmission mechanism 21 is fixedly connected to the rolling bearing 21-3. In the present embodiment, the transmission mechanism 21 includes a plurality of transmission plates 21-1. In order to make the transmission mechanism 21 more stable, a reinforcing plate 21-2 is further provided between the plurality of transmission plates 21-1, and the plurality of transmission mechanisms 21 are connected by the reinforcing plate 21-2 to ensure the strength of the entire structure. In the present embodiment, the number of the transmission mechanisms 21 is 4. A card slot 27 is provided at the end of each transmission plate 21-1, and the card slot 27 is provided in a one-to-one correspondence with the extension portion 162 of the main rod locking device 16 in the variable diameter cleaning head 1, and is engaged with the limit card slot on the extension portion 162 through the engagement groove 167 on the connecting cover 165.

[0097] Optionally, refer to Figure 8 , the transmission rod 2 also includes a motor fixing bolt 22-2, a motor base 22-1, a motor 22 and a motor output end 22-3 on the connection end with the variable diameter cleaning head 1. Wherein, the motor base 22-1 is arranged below the rolling bearing 21-3, and the motor 22 is fixedly arranged on the motor base 22-1 by the motor fixing bolt 22-2, so that the motor 22 is located in the space surrounded by several transmission plates 21-1. Optionally, the ball bearing 21-3 and the transmission mechanism 21 need to be welded and fixed in advance, and the rod body and the motor base 22-1 also need to be welded in advance. In addition to the four bolt positions that need to be reserved for fixing with the motor 22, the motor base 22-1 also reserves a motor line through hole, that is, a threading hole 28. The threading hole 28 is provided with a connecting line 26 connecting the motor. In order to control the weight of the entire device, the transmission rod 2 body adopts an aluminum structure, thereby reducing the overall weight of the transmission rod 2, and the rod body is hollow, which can be used as a threading space. Optionally, the transmission rod 2 further includes a transmission rod conversion joint 25 , and the transmission rod conversion joint 25 is used to be connected to the control rod 3 .

[0098] Reference Figures 5 to 8Before installing the transmission rod 2 and the variable diameter cleaning head 1, first weld the transmission mechanism 21, the reinforcing plate 21-2, and the ball bearing 21-3 to ensure that they are firmly welded. Then weld the transmission rod main rod 24 and the motor base 22-1 to ensure that they are firmly welded. At this time, all preparations have been completed. During installation, first fix the motor 22 on the motor base 22-1 and tighten it with the motor fixing bolt 22-2. The connecting wire 26 of the motor 22 passes through the transmission rod main rod 24 along the threading hole 28. At this time, the pre-welded transmission mechanism 21 is integrally sleeved on the transmission rod main rod 24 without installation. Secondly, dock the power output end on the motor 22 with the reserved interface of the rotating shaft 15, and ensure that it has been installed in place. At this time, move the transmission mechanism 21 that has been sleeved on the transmission rod main rod 24 upward, and dock the card slot 27 with the main rod locking device 16. When a "click" sound is heard, it means that the installation is complete. Then, the ball bearing 21-3 is welded and fixed on the transmission rod main rod 24. At this time, the installation of the variable diameter cleaning head and the transmission rod main rod 24 is completed. Figure 3a If you want to remove the variable diameter cleaning head, just turn the unlocking buckle 168, the spring sheet 164 will be affected by the connecting rod 169 and shrink in one direction, but will not slide down under the action of the spring baffle 166. Since the limit bayonet 163 and the connecting rod 169 are integrated, they will move together, and the slot 27 will naturally loosen without the force of the limit bayonet. At this time, the variable diameter cleaning head can be removed.

[0099] In an alternative embodiment of this embodiment, refer to Figure 5 , 9 Or 10, the cleaning device also includes a control rod 3, which includes a control rod main rod 31 and a battery 34 arranged in the control rod main rod 31, and the battery 34 is electrically connected to the motor 22. In this embodiment, the control rod 3 also includes an anti-slip handle 36, a knob 33, a back cover 37, a battery 34, and a control rod connecting joint 32. The control rod body adopts an aluminum structure, and six batteries 34 can be installed inside as a power source. When in use, the battery 34 can be placed in the back cover 37 by unscrewing it. After installation, tighten the back cover 37. The end of the control rod body adopts an anti-slip handle 36 texture, which will not slip during use due to the characteristics of the rod body material. The knob 33 mainly plays the role of controlling the switch and adjusting the speed.

[0100] Reference Fig. 9Or 10, the control rod 3 can be disassembled into two parts, and the two parts are assembled by snapping. In the early stage of installation, the battery fixing frame 34, the connecting wire 26, and the knob 33 are arranged in advance in the half of the control rod 3, and then the two parts of the control rod 3 are installed in place, and then the anti-slip handle 36 is put on the control rod main rod 31. At this time, the battery 34 can be installed in the control rod main rod 31, and finally the back cover 37 is screwed on. At this time, the control rod 3 is installed. Among them, the knob 33 on the control rod 3 is mainly used to adjust the power on and off and the rotation speed of the cleaning head.

[0101] There are two main connection forms between the control rod 3 and the transmission rod 2. The first is to connect the respective wiring ports 38 together, and then connect the external thread at the rear end of the transmission rod 2 with the internal thread at the head end of the control rod 3. At this time, the entire cleaning tool can only be in a horizontal working state. The other is to connect the transmission rod conversion joint 25 with the external thread at the rear end of the transmission rod 2, and then connect the control rod conversion joint 32 with the internal thread at the head end of the control rod 3. After the two sides are fixed, the respective conversion joints are connected together and connected with a latch, so that the transmission rod 2 and the control rod 3 can rotate axially, which is convenient for cleaning equipment in special positions.

[0102] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A variable diameter cleaning head, characterized in that: include: Main pole; A retractable frame is disposed around the side wall of the main rod; A frame adjustment device is slidably sleeved on the main rod and is hinged to the telescopic frame. The frame adjustment device reciprocates along the axial direction of the main rod to drive the telescopic frame to extend or contract; A frame locking device is arranged on the main rod to lock and position the frame adjusting device; A rotating shaft, fixedly arranged on the end surface of the main rod; A main rod locking device surrounds and covers the rotating shaft and is fixedly connected to the main rod, and the main rod locking device includes: A connecting cover, comprising a bottom wall covering the end surface of the main rod and a side wall extending along the edge of the bottom wall and arranged around the rotating shaft, the side wall of the connecting cover being threadedly connected to the side wall of the main rod; A sleeve ring, sleeved on the rotating shaft and arranged in a space enclosed by the connecting cover and the main rod; Extension parts, a plurality of extension parts extending from the side wall of the sleeve ring along the radial direction of the main rod, and a limited position bayonet is formed at the end of each extension part; A spring baffle is arranged on the surface of the bottom wall of the connection cover facing the main rod, and the spring baffle corresponds to the extension part one by one; A spring sheet, comprising a first part and a second part, wherein the first part and the second part are integrally connected to form a V-shaped structure; the spring sheet is arranged between the extension portion and the spring baffle, and the first part of the spring sheet is in contact with the extension portion, and the second part of the spring sheet is in contact with the spring baffle; A connecting rod extending from the sleeve ring along the radial direction of the main rod and penetrating the side wall of the connecting cover; An unlocking buckle, which is arranged on the outer side wall of the connection cover and is fixedly connected to the end of the connection rod extending to the outer side wall of the connection cover; When the unlocking buckle is pushed along the circumferential direction of the main rod, the unlocking buckle drives the connecting rod and drives the extending portion to move along the circumferential direction of the main rod.

2. The variable diameter cleaning head according to claim 1, characterized in that: The telescopic frame includes a plurality of main frames spaced around the main rod, and a single main frame includes: A first support frame, one end of which is hinged to the skeleton adjustment device; A second support frame, one end of which is hinged to the main rod, and the other end of the first support frame is hinged to the second support frame; A third support frame, one end of which is hinged to the main rod; The fourth support frame is arranged parallel to the extension direction of the main rod, and the other end of the second support frame and the other end of the third support frame are both hinged to the fourth support frame, and the second support frame and the third support frame are arranged in parallel.

3. The variable diameter cleaning head according to claim 2, characterized in that: The skeleton adjustment device is an adjustment ring sleeved on the main rod, and a plurality of the first support frames are arranged at intervals along the circumferential direction of the outer side wall of the adjustment ring and are hinged to the outer wall of the adjustment ring.

4. The variable diameter cleaning head according to claim 3, characterized in that: The adjusting ring is formed into a conical structure with a diameter gradually decreasing in a direction away from the telescopic frame, and an external thread is arranged on the surface of the conical structure.

5. The variable diameter cleaning head according to claim 4, characterized in that: The skeleton locking device is a locking ring, and an internal thread is arranged on the inner wall of the locking ring, and the internal thread matches the external thread on the adjusting ring.

6. The variable diameter cleaning head according to claim 1, characterized in that: The variable diameter cleaning head also includes: The scale lines are arranged along the extension direction of the main rod and are used to mark the position of the skeleton adjustment device.

7. A cleaning device, characterized in that: include: A variable diameter cleaning head, wherein the variable diameter cleaning head is the variable diameter cleaning head according to any one of claims 1 to 6; A transmission rod is provided with a motor inside the transmission rod, and a power output end of the motor is drivingly connected to the variable diameter cleaning head.

8. The cleaning device according to claim 7, characterized in that: The transmission rod also includes: A transmission mechanism is sleeved on the transmission rod through a bearing and is arranged on a connection end of the transmission rod for connecting the variable diameter cleaning head; The card slot is arranged on the transmission mechanism, and the card slot is arranged one-to-one with the extension part of the main rod locking device in the variable diameter cleaning head, and is engaged with the limit card slot on the extension part through the engagement groove on the connecting cover.

9. The cleaning device according to claim 7, characterized in that: The cleaning device also includes: A control rod is fixedly connected to the transmission rod, and a battery is arranged inside the control rod, and the battery is electrically connected to the motor in the transmission rod.

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